Precipitation impurity removal device applied to zinc oxide processing

The utility model discloses a precipitation and impurity removal device applied to zinc oxide processing. The precipitation and impurity removal device is fixedly installed on a base attached to the ground. The top of the base is fixedly connected with a reaction cylinder used for storing raw materials, and a slag discharging valve channel used for discharging precipitated impurities is welded to a lower end opening of the reaction cylinder; comprising a motor which is vertically installed at the center of the top of the reaction cylinder, a transmission shaft of a rotating frame is connected to an output shaft of the motor, and the transmission shaft rotationally penetrates through the reaction cylinder; the liquid outlet pipe fixedly penetrates through the lower portion of the side wall of the reaction cylinder, an annular groove is formed in the end face of the liquid outlet pipe, and a fixing ring is embedded in the groove of the liquid outlet pipe in a sliding mode and plays a role in sealing and fasteni